1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.webdav.methods;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.util.GetterUtil;
28  import com.liferay.portal.kernel.util.StringPool;
29  import com.liferay.portal.webdav.WebDAVException;
30  import com.liferay.portal.webdav.WebDAVRequest;
31  import com.liferay.portal.webdav.WebDAVStorage;
32  import com.liferay.portal.webdav.WebDAVUtil;
33  
34  import javax.servlet.http.HttpServletRequest;
35  import javax.servlet.http.HttpServletResponse;
36  
37  /**
38   * <a href="UnlockMethodImpl.java.html"><b><i>View Source</i></b></a>
39   *
40   * @author Alexander Chow
41   */
42  public class UnlockMethodImpl implements Method {
43  
44      public int process(WebDAVRequest webDavRequest) throws WebDAVException {
45          WebDAVStorage storage = webDavRequest.getWebDAVStorage();
46  
47          String token = getToken(webDavRequest.getHttpServletRequest());
48  
49          if (!storage.isSupportsClassTwo()) {
50              return HttpServletResponse.SC_METHOD_NOT_ALLOWED;
51          }
52  
53          if (storage.unlockResource(webDavRequest, token)) {
54              return HttpServletResponse.SC_NO_CONTENT;
55          }
56          else {
57              return HttpServletResponse.SC_PRECONDITION_FAILED;
58          }
59      }
60  
61      protected String getToken(HttpServletRequest request) {
62          String token = StringPool.BLANK;
63  
64          String value = GetterUtil.getString(request.getHeader("Lock-Token"));
65  
66          if (_log.isInfoEnabled()) {
67              _log.info("\"Lock-Token\" header is " + value);
68          }
69  
70          if (value.startsWith("<") && value.endsWith(">")) {
71              value = value.substring(1, value.length() - 1);
72          }
73  
74          int index = value.indexOf(WebDAVUtil.TOKEN_PREFIX);
75  
76          if (index >= 0) {
77              index += WebDAVUtil.TOKEN_PREFIX.length();
78  
79              if (index < value.length()) {
80                  token = GetterUtil.getString(value.substring(index));
81              }
82          }
83  
84          return token;
85      }
86  
87      private static Log _log = LogFactoryUtil.getLog(UnlockMethodImpl.class);
88  
89  }